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[IRDA]: ali-ircc: using device model power management 

This patch gets rid of the old power management code and now uses the
device model for the ali-ircc driver.

Signed-off-by: Samuel Ortiz <samuel@sortiz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Samuel Ortiz 2006-05-25 16:21:10 -07:00 committed by David S. Miller
parent bc1d6937e6
commit 898b1d16f8
1 changed files with 61 additions and 65 deletions
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126
drivers/net/irda/ali-ircc.c
View File

@ -34,14 +34,12 @@
#include <linux/rtnetlink.h> #include <linux/rtnetlink.h>
#include <linux/serial_reg.h> #include <linux/serial_reg.h>
#include <linux/dma-mapping.h> #include <linux/dma-mapping.h>
#include <linux/platform_device.h>
#include <asm/io.h> #include <asm/io.h>
#include <asm/dma.h> #include <asm/dma.h>
#include <asm/byteorder.h> #include <asm/byteorder.h>
#include <linux/pm.h>
#include <linux/pm_legacy.h>
#include <net/irda/wrapper.h> #include <net/irda/wrapper.h>
#include <net/irda/irda.h> #include <net/irda/irda.h>
#include <net/irda/irda_device.h> #include <net/irda/irda_device.h>
@ -51,7 +49,19 @@
#define CHIP_IO_EXTENT 8 #define CHIP_IO_EXTENT 8
#define BROKEN_DONGLE_ID #define BROKEN_DONGLE_ID
static char *driver_name = "ali-ircc"; #define ALI_IRCC_DRIVER_NAME "ali-ircc"
/* Power Management */
static int ali_ircc_suspend(struct platform_device *dev, pm_message_t state);
static int ali_ircc_resume(struct platform_device *dev);
static struct platform_driver ali_ircc_driver = {
.suspend = ali_ircc_suspend,
.resume = ali_ircc_resume,
.driver = {
.name = ALI_IRCC_DRIVER_NAME,
},
};
/* Module parameters */ /* Module parameters */
static int qos_mtt_bits = 0x07; /* 1 ms or more */ static int qos_mtt_bits = 0x07; /* 1 ms or more */
@ -97,10 +107,7 @@ static int ali_ircc_is_receiving(struct ali_ircc_cb *self);
static int ali_ircc_net_open(struct net_device *dev); static int ali_ircc_net_open(struct net_device *dev);
static int ali_ircc_net_close(struct net_device *dev); static int ali_ircc_net_close(struct net_device *dev);
static int ali_ircc_net_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); static int ali_ircc_net_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
static int ali_ircc_pmproc(struct pm_dev *dev, pm_request_t rqst, void *data);
static void ali_ircc_change_speed(struct ali_ircc_cb *self, __u32 baud); static void ali_ircc_change_speed(struct ali_ircc_cb *self, __u32 baud);
static void ali_ircc_suspend(struct ali_ircc_cb *self);
static void ali_ircc_wakeup(struct ali_ircc_cb *self);
static struct net_device_stats *ali_ircc_net_get_stats(struct net_device *dev); static struct net_device_stats *ali_ircc_net_get_stats(struct net_device *dev);
/* SIR function */ /* SIR function */
@ -145,6 +152,14 @@ static int __init ali_ircc_init(void)
int i = 0; int i = 0;
IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__); IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__);
ret = platform_driver_register(&ali_ircc_driver);
if (ret) {
IRDA_ERROR("%s, Can't register driver!\n",
ALI_IRCC_DRIVER_NAME);
return ret;
}
/* Probe for all the ALi chipsets we know about */ /* Probe for all the ALi chipsets we know about */
for (chip= chips; chip->name; chip++, i++) for (chip= chips; chip->name; chip++, i++)
@ -214,6 +229,10 @@ static int __init ali_ircc_init(void)
} }
IRDA_DEBUG(2, "%s(), ----------------- End -----------------\n", __FUNCTION__); IRDA_DEBUG(2, "%s(), ----------------- End -----------------\n", __FUNCTION__);
if (ret)
platform_driver_unregister(&ali_ircc_driver);
return ret; return ret;
} }
@ -228,14 +247,14 @@ static void __exit ali_ircc_cleanup(void)
int i; int i;
IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__); IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__);
pm_unregister_all(ali_ircc_pmproc);
for (i=0; i < 4; i++) { for (i=0; i < 4; i++) {
if (dev_self[i]) if (dev_self[i])
ali_ircc_close(dev_self[i]); ali_ircc_close(dev_self[i]);
} }
platform_driver_unregister(&ali_ircc_driver);
IRDA_DEBUG(2, "%s(), ----------------- End -----------------\n", __FUNCTION__); IRDA_DEBUG(2, "%s(), ----------------- End -----------------\n", __FUNCTION__);
} }
@ -249,7 +268,6 @@ static int ali_ircc_open(int i, chipio_t *info)
{ {
struct net_device *dev; struct net_device *dev;
struct ali_ircc_cb *self; struct ali_ircc_cb *self;
struct pm_dev *pmdev;
int dongle_id; int dongle_id;
int err; int err;
@ -284,7 +302,8 @@ static int ali_ircc_open(int i, chipio_t *info)
self->io.fifo_size = 16; /* SIR: 16, FIR: 32 Benjamin 2000/11/1 */ self->io.fifo_size = 16; /* SIR: 16, FIR: 32 Benjamin 2000/11/1 */
/* Reserve the ioports that we need */ /* Reserve the ioports that we need */
if (!request_region(self->io.fir_base, self->io.fir_ext, driver_name)) { if (!request_region(self->io.fir_base, self->io.fir_ext,
ALI_IRCC_DRIVER_NAME)) {
IRDA_WARNING("%s(), can't get iobase of 0x%03x\n", __FUNCTION__, IRDA_WARNING("%s(), can't get iobase of 0x%03x\n", __FUNCTION__,
self->io.fir_base); self->io.fir_base);
err = -ENODEV; err = -ENODEV;
@ -354,13 +373,10 @@ static int ali_ircc_open(int i, chipio_t *info)
/* Check dongle id */ /* Check dongle id */
dongle_id = ali_ircc_read_dongle_id(i, info); dongle_id = ali_ircc_read_dongle_id(i, info);
IRDA_MESSAGE("%s(), %s, Found dongle: %s\n", __FUNCTION__, driver_name, dongle_types[dongle_id]); IRDA_MESSAGE("%s(), %s, Found dongle: %s\n", __FUNCTION__,
ALI_IRCC_DRIVER_NAME, dongle_types[dongle_id]);
self->io.dongle_id = dongle_id; self->io.dongle_id = dongle_id;
pmdev = pm_register(PM_SYS_DEV, PM_SYS_IRDA, ali_ircc_pmproc);
if (pmdev)
pmdev->data = self;
IRDA_DEBUG(2, "%s(), ----------------- End -----------------\n", __FUNCTION__); IRDA_DEBUG(2, "%s(), ----------------- End -----------------\n", __FUNCTION__);
@ -548,12 +564,11 @@ static int ali_ircc_setup(chipio_t *info)
/* Should be 0x00 in the M1535/M1535D */ /* Should be 0x00 in the M1535/M1535D */
if(version != 0x00) if(version != 0x00)
{ {
IRDA_ERROR("%s, Wrong chip version %02x\n", driver_name, version); IRDA_ERROR("%s, Wrong chip version %02x\n",
ALI_IRCC_DRIVER_NAME, version);
return -1; return -1;
} }
// IRDA_MESSAGE("%s, Found chip at base=0x%03x\n", driver_name, info->cfg_base);
/* Set FIR FIFO Threshold Register */ /* Set FIR FIFO Threshold Register */
switch_bank(iobase, BANK1); switch_bank(iobase, BANK1);
outb(RX_FIFO_Threshold, iobase+FIR_FIFO_TR); outb(RX_FIFO_Threshold, iobase+FIR_FIFO_TR);
@ -583,7 +598,8 @@ static int ali_ircc_setup(chipio_t *info)
/* Switch to SIR space */ /* Switch to SIR space */
FIR2SIR(iobase); FIR2SIR(iobase);
IRDA_MESSAGE("%s, driver loaded (Benjamin Kong)\n", driver_name); IRDA_MESSAGE("%s, driver loaded (Benjamin Kong)\n",
ALI_IRCC_DRIVER_NAME);
/* Enable receive interrupts */ /* Enable receive interrupts */
// outb(UART_IER_RDI, iobase+UART_IER); //benjamin 2000/11/23 01:25PM // outb(UART_IER_RDI, iobase+UART_IER); //benjamin 2000/11/23 01:25PM
@ -647,7 +663,8 @@ static irqreturn_t ali_ircc_interrupt(int irq, void *dev_id,
IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__); IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__);
if (!dev) { if (!dev) {
IRDA_WARNING("%s: irq %d for unknown device.\n", driver_name, irq); IRDA_WARNING("%s: irq %d for unknown device.\n",
ALI_IRCC_DRIVER_NAME, irq);
return IRQ_NONE; return IRQ_NONE;
} }
@ -1328,7 +1345,8 @@ static int ali_ircc_net_open(struct net_device *dev)
/* Request IRQ and install Interrupt Handler */ /* Request IRQ and install Interrupt Handler */
if (request_irq(self->io.irq, ali_ircc_interrupt, 0, dev->name, dev)) if (request_irq(self->io.irq, ali_ircc_interrupt, 0, dev->name, dev))
{ {
IRDA_WARNING("%s, unable to allocate irq=%d\n", driver_name, IRDA_WARNING("%s, unable to allocate irq=%d\n",
ALI_IRCC_DRIVER_NAME,
self->io.irq); self->io.irq);
return -EAGAIN; return -EAGAIN;
} }
@ -1338,7 +1356,8 @@ static int ali_ircc_net_open(struct net_device *dev)
* failure. * failure.
*/ */
if (request_dma(self->io.dma, dev->name)) { if (request_dma(self->io.dma, dev->name)) {
IRDA_WARNING("%s, unable to allocate dma=%d\n", driver_name, IRDA_WARNING("%s, unable to allocate dma=%d\n",
ALI_IRCC_DRIVER_NAME,
self->io.dma); self->io.dma);
free_irq(self->io.irq, self); free_irq(self->io.irq, self);
return -EAGAIN; return -EAGAIN;
@ -2108,60 +2127,37 @@ static struct net_device_stats *ali_ircc_net_get_stats(struct net_device *dev)
return &self->stats; return &self->stats;
} }
static void ali_ircc_suspend(struct ali_ircc_cb *self) static int ali_ircc_suspend(struct platform_device *dev, pm_message_t state)
{ {
IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__ ); struct ali_ircc_cb *self = platform_get_drvdata(dev);
IRDA_MESSAGE("%s, Suspending\n", driver_name); IRDA_MESSAGE("%s, Suspending\n", ALI_IRCC_DRIVER_NAME);
if (self->io.suspended) if (self->io.suspended)
return; return 0;
ali_ircc_net_close(self->netdev); ali_ircc_net_close(self->netdev);
self->io.suspended = 1; self->io.suspended = 1;
IRDA_DEBUG(2, "%s(), ----------------- End ------------------\n", __FUNCTION__ );
}
static void ali_ircc_wakeup(struct ali_ircc_cb *self)
{
IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__ );
if (!self->io.suspended)
return;
ali_ircc_net_open(self->netdev);
IRDA_MESSAGE("%s, Waking up\n", driver_name);
self->io.suspended = 0;
IRDA_DEBUG(2, "%s(), ----------------- End ------------------\n", __FUNCTION__ );
}
static int ali_ircc_pmproc(struct pm_dev *dev, pm_request_t rqst, void *data)
{
struct ali_ircc_cb *self = (struct ali_ircc_cb*) dev->data;
IRDA_DEBUG(2, "%s(), ---------------- Start ----------------\n", __FUNCTION__ );
if (self) {
switch (rqst) {
case PM_SUSPEND:
ali_ircc_suspend(self);
break;
case PM_RESUME:
ali_ircc_wakeup(self);
break;
}
}
IRDA_DEBUG(2, "%s(), ----------------- End ------------------\n", __FUNCTION__ );
return 0; return 0;
} }
static int ali_ircc_resume(struct platform_device *dev)
{
struct ali_ircc_cb *self = platform_get_drvdata(dev);
if (!self->io.suspended)
return 0;
ali_ircc_net_open(self->netdev);
IRDA_MESSAGE("%s, Waking up\n", ALI_IRCC_DRIVER_NAME);
self->io.suspended = 0;
return 0;
}
/* ALi Chip Function */ /* ALi Chip Function */